Nov 17 18:22:49.991 INFO testing webdriver_client-0.2.2 against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 18:22:49.992 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 18:22:50.498 INFO [stdout] a6917acfb3dcbc6b0202a07e744aa48ce01c623644041c55472c854ec781997e
Nov 17 18:22:50.505 INFO running `"docker" "start" "-a" "a6917acfb3dcbc6b0202a07e744aa48ce01c623644041c55472c854ec781997e"`
Nov 17 18:22:51.731 INFO [stderr] usermod: no changes
Nov 17 18:22:51.959 INFO [stderr]    Compiling nix v0.5.1
Nov 17 18:22:51.961 INFO [stderr]    Compiling hyper v0.10.15
Nov 17 18:22:51.961 INFO [stderr]    Compiling stderrlog v0.2.4
Nov 17 18:22:59.455 INFO [stderr]    Compiling rustyline v1.0.0
Nov 17 18:23:06.891 INFO [stderr]    Compiling webdriver_client v0.2.2 (/source)
Nov 17 18:23:17.745 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.98s
Nov 17 18:23:17.754 INFO [stderr] su: No module specific data is present
Nov 17 18:23:18.092 INFO running `"docker" "inspect" "a6917acfb3dcbc6b0202a07e744aa48ce01c623644041c55472c854ec781997e"`
Nov 17 18:23:18.325 INFO running `"docker" "rm" "-f" "a6917acfb3dcbc6b0202a07e744aa48ce01c623644041c55472c854ec781997e"`
Nov 17 18:23:18.580 INFO [stdout] a6917acfb3dcbc6b0202a07e744aa48ce01c623644041c55472c854ec781997e
Nov 17 18:23:18.587 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 18:23:18.933 INFO [stdout] 018b965cdfb989c86eeb36128e8e5107f984d63bc52552fd5a9fa37f19470afc
Nov 17 18:23:18.934 INFO running `"docker" "start" "-a" "018b965cdfb989c86eeb36128e8e5107f984d63bc52552fd5a9fa37f19470afc"`
Nov 17 18:23:19.504 INFO [stderr] usermod: no changes
Nov 17 18:23:19.630 INFO [stderr]    Compiling env_logger v0.4.3
Nov 17 18:23:20.810 INFO [stderr]    Compiling webdriver_client v0.2.2 (/source)
Nov 17 18:23:31.391 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.85s
Nov 17 18:23:31.408 INFO [stderr] su: No module specific data is present
Nov 17 18:23:31.827 INFO running `"docker" "inspect" "018b965cdfb989c86eeb36128e8e5107f984d63bc52552fd5a9fa37f19470afc"`
Nov 17 18:23:31.952 INFO running `"docker" "rm" "-f" "018b965cdfb989c86eeb36128e8e5107f984d63bc52552fd5a9fa37f19470afc"`
Nov 17 18:23:32.070 INFO [stdout] 018b965cdfb989c86eeb36128e8e5107f984d63bc52552fd5a9fa37f19470afc